Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds
Substituted nitrogen heterocycles are structural key units in many important pharmaceuticals. A new synthetic approach towards heterocyclic compounds displaying antibacterial activity against <i>Staphylococcus aureus</i> or cytotoxic activity has been developed. The selective synthesis o...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-06-01
|
Series: | Molecules |
Subjects: | |
Online Access: | https://www.mdpi.com/1420-3049/25/12/2863 |
id |
doaj-a98b02a2581c434eb944a88795f8ccc2 |
---|---|
record_format |
Article |
spelling |
doaj-a98b02a2581c434eb944a88795f8ccc22020-11-25T03:52:56ZengMDPI AGMolecules1420-30492020-06-01252863286310.3390/molecules25122863Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic CompoundsViktor A. Zapol’skii0Ursula Bilitewski1Sören R. Kupiec2Isabell Ramming3Dieter E. Kaufmann4Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, GermanyHelmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, GermanyInstitute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, GermanyHelmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, GermanyInstitute of Organic Chemistry, Clausthal University of Technology, Leibnizstraße 6, 38678 Clausthal-Zellerfeld, GermanySubstituted nitrogen heterocycles are structural key units in many important pharmaceuticals. A new synthetic approach towards heterocyclic compounds displaying antibacterial activity against <i>Staphylococcus aureus</i> or cytotoxic activity has been developed. The selective synthesis of a series of 64 new N-heterocycles from the three nitrobutadienes 2-nitroperchloro-1,3-butadiene, 4-bromotetrachloro-2-nitro-1,3-butadiene and (<i>Z</i>)-1,1,4-trichloro-2,4-dinitrobuta-1,3-diene proved feasible. Their reactions with N-, O- and S-nucleophiles provide rapid access to push-pull substituted benzoxazolines, benzimidazolines, imidazolidines, thiazolidinones, pyrazoles, pyrimidines, pyridopyrimidines, benzoquinolines, isothiazoles, dihydroisoxazoles, and thiophenes with unique substitution patterns. Antibacterial activities of 64 synthesized compounds were examined. Additionally, seven compounds (thiazolidinone, nitropyrimidine, indole, pyridopyrimidine, and thiophene derivatives) exhibited a significant cytotoxicity with IC<sub>50</sub>-values from 1.05 to 20.1 µM. In conclusion, it was demonstrated that polyhalonitrobutadienes have an interesting potential as structural backbones for a variety of highly functionalized, pharmaceutically active heterocycles.https://www.mdpi.com/1420-3049/25/12/2863polyhalonitrobutadienesnucleophilic substitutionheterocyclizationnitrogen heterocyclesmedicinal chemistry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Viktor A. Zapol’skii Ursula Bilitewski Sören R. Kupiec Isabell Ramming Dieter E. Kaufmann |
spellingShingle |
Viktor A. Zapol’skii Ursula Bilitewski Sören R. Kupiec Isabell Ramming Dieter E. Kaufmann Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds Molecules polyhalonitrobutadienes nucleophilic substitution heterocyclization nitrogen heterocycles medicinal chemistry |
author_facet |
Viktor A. Zapol’skii Ursula Bilitewski Sören R. Kupiec Isabell Ramming Dieter E. Kaufmann |
author_sort |
Viktor A. Zapol’skii |
title |
Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds |
title_short |
Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds |
title_full |
Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds |
title_fullStr |
Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds |
title_full_unstemmed |
Polyhalonitrobutadienes as Versatile Building Blocks for the Biotargeted Synthesis of Substituted N-Heterocyclic Compounds |
title_sort |
polyhalonitrobutadienes as versatile building blocks for the biotargeted synthesis of substituted n-heterocyclic compounds |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2020-06-01 |
description |
Substituted nitrogen heterocycles are structural key units in many important pharmaceuticals. A new synthetic approach towards heterocyclic compounds displaying antibacterial activity against <i>Staphylococcus aureus</i> or cytotoxic activity has been developed. The selective synthesis of a series of 64 new N-heterocycles from the three nitrobutadienes 2-nitroperchloro-1,3-butadiene, 4-bromotetrachloro-2-nitro-1,3-butadiene and (<i>Z</i>)-1,1,4-trichloro-2,4-dinitrobuta-1,3-diene proved feasible. Their reactions with N-, O- and S-nucleophiles provide rapid access to push-pull substituted benzoxazolines, benzimidazolines, imidazolidines, thiazolidinones, pyrazoles, pyrimidines, pyridopyrimidines, benzoquinolines, isothiazoles, dihydroisoxazoles, and thiophenes with unique substitution patterns. Antibacterial activities of 64 synthesized compounds were examined. Additionally, seven compounds (thiazolidinone, nitropyrimidine, indole, pyridopyrimidine, and thiophene derivatives) exhibited a significant cytotoxicity with IC<sub>50</sub>-values from 1.05 to 20.1 µM. In conclusion, it was demonstrated that polyhalonitrobutadienes have an interesting potential as structural backbones for a variety of highly functionalized, pharmaceutically active heterocycles. |
topic |
polyhalonitrobutadienes nucleophilic substitution heterocyclization nitrogen heterocycles medicinal chemistry |
url |
https://www.mdpi.com/1420-3049/25/12/2863 |
work_keys_str_mv |
AT viktorazapolskii polyhalonitrobutadienesasversatilebuildingblocksforthebiotargetedsynthesisofsubstitutednheterocycliccompounds AT ursulabilitewski polyhalonitrobutadienesasversatilebuildingblocksforthebiotargetedsynthesisofsubstitutednheterocycliccompounds AT sorenrkupiec polyhalonitrobutadienesasversatilebuildingblocksforthebiotargetedsynthesisofsubstitutednheterocycliccompounds AT isabellramming polyhalonitrobutadienesasversatilebuildingblocksforthebiotargetedsynthesisofsubstitutednheterocycliccompounds AT dieterekaufmann polyhalonitrobutadienesasversatilebuildingblocksforthebiotargetedsynthesisofsubstitutednheterocycliccompounds |
_version_ |
1724480094864408576 |